Cylinder Heads

A cylinder head is a crucial component of your Subaru’s engine. It sits above the cylinders and forms the roof of the combustion chamber. In most new vehicles, the cylinder head is a complicated metal block that also contains the inlet, exhaust, and coolant passages. Some heads also contain valve train components and fuel injectors. Cylinder heads are usually made of cast iron, but some engines are built with aluminum. For better thermal conductivity, aluminum heads are built for an engine. In contrast, cast iron cylinder heads have better elevated temperature fatigue strength.

What Causes a Cylinder Head Failure?

Common cylinder head problems include:

Shop and Save on Genuine OEM Subaru Parts

For the best performance of your Subaru’s engine, use only the highest quality OEM parts. We have all the replacement parts you need. Check our online catalog to find the engine parts you need, such as camshafts and valve covers. If you have any questions, send us a message.